Dust-collecting mechanism.



A. C. BRANTINGHAM &' L. R. ..KEY.

' I DUST COLLECTING MECHAN|$M. APPLICATION FILED JAN.26. 1914.

1,277,691. Patented Sept. 3,1918.

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DUST COLLECTING MECHANISM.

APPLICATION FILED IAN-26.1914- Patented Sept. 3, 1918.

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" f E TEE STATES PATENT @FFICE.

ALLEN C. BRANTINGHAM, OF TOLEDO, OHIO, AND LEWIS R. KEY, OF GUELPH, ONTABIQI CANADA; SAID KEY ASSIGNOR, BY MESNE ASSIGNMENTS, TO SAID BRANTINGHAM.

DUST-COLLECTING MECHANISM.

Specification of Letters Patent.

Patented Sept. 3, 1918.-

Application filed January 26, 1914. Serial No. 814,578.

To all whom it may concern Be it known that we, ALLEN C. 'BRANTING- HAM, a citizen of'the United States, residing at Toledo, Lucas county, Ohio, and LEWIS R. KEY, a. subject of the King of Great Britain, residing-at Guelph, Ontario, Canada, have lnvented new and useful Dust- Collecting Mechanisms, of which the following is a specification.

his invention relates to mechanism for removing particles held in suspensionin a This invention has utility when embodied for air purification and reclaiming matter therefrom, particularly in the handling and milling of cereals.

Referring to the drawings:

Figure 1 is a side elevation, with parts broken away, of an embodiment of the invention adapted to remove particles from dust laden air;

Fig. 2 is a plan view of the device of Fig. l, with parts broken away, and

Fig. 3 is an end elevation, from the left of Fig. 2, with parts broken away.

The material to be treated, as dust laden air, passes through the supply duct 1 forming an intake opening near the top and at one end of the long narrow settling chamber 2. In this hamber 2 are disposed transverse supply deflecting vanes or partitions 3, 4, 5, movable in the guide ways 6 and v actuated by the hand wheels 7 on the shafts 8 carrying the pinions 9 in mesh with the racks 10 carried by the respective partitions 3, 4, 5. The upper ends of these partitions 3, 4, 5, terminate in curved deflecting hoods 11, 12, 13, respectively to direct the desired division of the dust laden air supply downward in the ducts 14 (Fig. 3) provided in the lower portion of the chamber 2. This downward-travel of the dust laden air in the ducts 14 goes to the reversing sections 15 from whence on each side upwardly extend ducts 16 to the right hand swirl cyclone dust collectors 17- and left, hand swirl cyclone dustcollectors 18. This distributing occurs for each partition and also at the chamber 2 terminal for the last pair of the cyclones Owing to the independent adjustment of the partitions the work of the several cyclones may be nicely distributed to insure uniform cleaning throughout the mechanism with capacity for handling a large volume of dust e5 ladvn air with little back pressure. Furthermore, the only power necessary for the device herein is the driving of the scrolls of the cyclones 17, 18, deliver to the scrolls 26, 28, in their housings 29. The scrolls trap the cyclones against suction or blowof dust therethrough in their handling of dust,

owing to the dust packing up therein and packing the outlets. The scrolls terminate in non-progressing sections 32 short of the downspouts 33, insuring packed air flow locks.

- The partially purified air entering the cyclones through the intake openings 34 has a' swirl approximately'two to two andone half the diameter of the cyclone, with the selective dust remover 35 taking the larger particles in the passage between it and the shell, removing such particles from disturbance, when there is reversalin the up-fiow through the duct 36 which may extend to a stack 37. The narrower the diameter of the swirl, with the same air supply, the greater the velocity, and incidentally the greater the centrifugal separation, In order that there may not be back pressure added, there is provision for precluding reduction of cross-sectional area of the fio'w adjacent the remover section 35, by reducing the diameter of the concentric duct 36, at the portion 38. The increased velocity, in this region, effects the third article separation, the first being in the settling chamber 2, the second at the outside ofthe remover 35.

In the operation, of the mechanism, the dust laden air flows up in the duct 1 and thence horizontally into the settling chamber 2, where the adjustable partitions or vanes, 3, 4, 5, divide up the dust laden air and direct it from the chamber 2 after passing downward therein and thence upward by ducts 16 through intake openings 34 for swirling about and downward in the cyclone dust collectors 18, for passing of the cleaned air upward by the duct 36 to the stack 37. The slackening of velocity of the air entering the settling chamber 2 precipitates some of the particles in suspension, to be drawn off by the scroll conveyer 27, while additional scroll conveyers 26, 28, remove the precipitated particles from the cyclones. This fine material removed from the air is not so readily disturbed by the updraft when the cyclones are equipped with the selective removers 35, or concentric shields.

What is claimed and it is desired to secure by Letters Patent is:

1. The combination with a dust laden air duct, of a settling chamber to which said duct is connected, a plurality of dust collectors in lateral communication with said chamber, means'independent of the dust collectors for removing dust from the settling chamber, and independently adjustable means in the chamber for distributing the air to the collectors.

2. A settling chamber, means for supplying said chamber with dust laden air, dust collectors independently in communication with said chamber, and vertically adjustable vanes in the chamber for distributing the air to the different collectors.

3. A settling chamber provided with air intake and outlet openings, a transverse partition in said chamber, intermediate said openings and opposing said intake opening to partially divide the chamber and deflect a portion of the supply from the intake opening, a dust collector provided with an intake. passage into which said partition deflected supply is delivered, and means for removing dust from the settling chamber.

4. A settling chamber provided with an intake opening, transverse partitions in said chamber opposing said opening and disposed in series to deflect portions of the supply from the intake opening, dust collectors each provided with an intake passage into which said partition deflected supplies are respectively delivered, and means for removing dust from the settling chamber.

5. A settling chamber provided with an intake opening, a transverse partition" in said chamber opposing said opening, a dust collector provided with a tubular member connecting the collector to the chamber adjacent the partition and into which tubular member said partition may deflect a supply from the intake opening, and adjusting means for varying the position of the partition in the chamber for changing the volume of air deflected and thereby to determine said supply to the collector.

6. A1 settling chamber provided with an intake opening, transverse partitions in said chamber opposing said opening, housing means providing a downwardly extending tubular member communicating with said chamber adjacent each partition and into wvhich tubular members the partitions may direct supplies from the intake opening, a flow locked precipitate remover to carry off material supplied by the downwardly extending tubular members and separated thereby, and an upwardly extending tubular member for the discharge flow balance from the downwardly extending tubular members.

7. A settling chamber provided with an intake opening, partitions in said chamber for distributing supply from said opening, housing means providing a pair of tubular members supplied by each partition, said tubular members each having a reversing section, a dust collector for each tubular member and a dust remover in communication with the reversing sections.

In testimony whereof we afiix our signatures in the presence of two witnesses.

ALLEN O. BRANTINGHAM. LEWIS R. KEY.

l/Vitnesses:

GEO. E. KIRK, C. H. RAUCH. 

